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Comment: Re:The intertubes (Score 1) 202

by onepoint (#49787955) Attached to: Adblock Plus Victorious Again In Court

did you ever really study the internet... and how public funding works?
Arpanet ( which I still recall using ) was a simple packet network,
shared lines between universities and some military computers ( I think )
public paid for the lines, but the hardware was built by the geeks in the lab

Public funding... apply for a grant, then you'll really see what and how grant money works
the idea for grants is to make a problem more manageable or new solution of efficiency or come up with something new ( like darpa asks )
it's all for the greater good. happens to be that the creator of the solution get's to make money off it. and consumer get the discount.

think about it, many new traffic algorithms are being developed due to research done 10 or 20 years ago and published in journals

Comment: Nuclear power phobia (Score 1) 44

by Phil Karn (#49787877) Attached to: The Marshall Islands, Nuclear Testing, and the NPT
Speaking of the horrific consequences of nuclear weapons testing in the Pacific, a big one that's still with us today is the knee-jerk phobia of nuclear power, often by people who can't distinguish between the two. Along with wind and solar, nuclear power is one of our chief tools to mitigate global warming, which will in the long term prove to be far worse than weapons testing. It sure doesn't help that the US government lied through its teeth about atmospheric testing. I've been trying to find a copy of Joseph Rotblat's paper deducing that most of the yield of the Ivy Mike and Castle Bravo tests came from the fast fission of the U-238 tamper, revealing as a lie the government's claim that fusion bombs were inherently clean. Anybody know where I can find a copy?

Comment: Re:Russian rocket motors (Score 1) 59

by Bruce Perens (#49787045) Attached to: SpaceX Cleared For US Military Launches

Russia would like for us to continue gifting them with cash for 40-year-old missle motors, it's our own government that doesn't want them any longer. For good reason. That did not cause SpaceX to enter the competitive process, they want the U.S. military as a customer. But it probably did make it go faster.

Also, ULA is flying 1960 technology, stuff that Mercury astronauts used, and only recently came up with concept drawings for something new due to competitive pressure from SpaceX. So, I am sure that folks within the Air Force wished for a better vendor but had no choice.

Comment: Re:a microscopic black hole won't hurt you (Score 2) 123

by jfengel (#49785779) Attached to: Prospects and Limits For the LHC's Capabilities To Test String Theory

Found this:

It says that a 3K black hole has a mass of 4x10^22 kg, a bit larger than the Everest-sized black hole.

The Everest-hole hole is extremely hot, 10^8 K, but it's still radiating so slowly that it'll take 10^21 years to evaporate, so it would be more than enough to destroy the earth.

I'm not quite sure how to solve for one that would be hot enough to suck in the earth before evaporating, but I see that a black hole that would last 1 second is a mere 70 million kilograms, with a radius of about a picometer.

Comment: Re:How to read f*ucked up code (Score 1) 261

by pla (#49785471) Attached to: How Much C++ Should You Know For an Entry-Level C++ Job?
Other than "type var[size];" there is no primitive array type

I agree with most of what you said, but this one stumps me. You've just defined a primitive array - An array named var of type type and size size. Other than its... well, primitiveness (no fancy default conversions, no memory management, no overloads to deal with it as a whole), what about that syntax do you object to?

Comment: Re:a microscopic black hole won't hurt you (Score 2) 123

by jfengel (#49785271) Attached to: Prospects and Limits For the LHC's Capabilities To Test String Theory

It's denser than that. The Schwartzschild radius of a black hole with a mass around 10^15 kg (a rough guess) is about 10^-12 meters (about a picometer). Give or take a few orders of magnitude. Wolfram Alpha has a convenient Schwartzschild radius calculator. The evaporation time for a black hole that big is 10^30 seconds.

The smaller a black hole is, the denser. The number you give is for a star-sized black hole. There isn't any known way to form grain-of-sand sized black holes, though they might have formed in the very early universe. In which case one could be wandering through the solar system at this very minute....

Comment: Re:Will Technology Disrupt the Song? (Score 1) 153

by jfengel (#49783517) Attached to: Ask Slashdot: Will Technology Disrupt the Song?

Record albums are kind of the pop equivalent of a symphony. They last roughly the same time, the length of a CD. It's a myth that it was chosen to be the length of Beethoven's 9th, but the intuition seems to be about right: that's about how long people are willing to listen to music before they need a break.

Not all albums are constructed well, but a good album has some kind of structure and forms a complete unit of music, rather than just being a bunch of songs. It's about as unified as the movements of a symphony. Songs don't quite correspond to movements (a movement is likely to be 15 minutes, a song 3), though as you say there is yet more structure within a movement.

These attention spans are probably not absolutely fundamental to human nature, but they're at least deeply culturally embedded.

It is too bad that things seem to have settled in a place that have eliminated long-form songs like Bohemian Rhapsody and Stairway to Heaven (about the length of a symphonic movement, and each definitely composed of sections that are very different musically). I would be very happy to see those return, though songs like those are rare epics, requiring tremendous skill and insight to construct. I don't know if Pandora will want to play them to you, since it means they get paid just once for feeding out bits that they could have been paid 3 or 4 times for, but I suspect that if somebody writes a great song like Stairway there will be demand for it. The streaming services will want to serve that demand, and since they have control over how often it comes up, it may cut only a tiny bit into their profits.

Comment: Re:US help? (Score 3) 138

by YrWrstNtmr (#49783217) Attached to: Heat Wave Kills More Than 1,100 In India
'airlift some water'

Well, that's about the dumbest thing I've read today.

Let's assume that 500,000,000 citizens are at risk in India.
Let's further assume that they would benefit from a mere 2 liters of water each, per day.

Water = 1kg per liter
747-400 MTOW - operating empty weight = ~215,000kg. So a 747 can lift 215,000 liters of water (assuming it actually fits inside)

To supply half a million people with 2 liters each, per day = 5,000 747 flights, every day.

airlift some water....right.

Comment: Context (Score 2) 59

by Bruce Perens (#49782349) Attached to: SpaceX Cleared For US Military Launches

This ends a situation in which two companies that would otherwise have been competitive bidders decided that it would cost them less to be a monopoly, and created their own cartel. Since they were a sole provider, they persuaded the government to pay them a Billion dollars a year simply so that they would retain the capability to manufacture rockets to government requirements.

Yes, there will be at least that Billion in savings and SpaceX so far seems more than competitive with the prices United Launch Alliance was charging. There will be other bidders eventually, as well.

One can't proceed from the informal to the formal by formal means.